Date:         Wed, 12 May 2010 09:55:15 -0700
Reply-To:     cesar quiros <cesarquiros@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         cesar quiros <cesarquiros@HOTMAIL.COM>
Subject:      Re: Battery Problems- Slow Cranking
Comments: To: phishman068@gmail.com
In-Reply-To:  <AANLkTik7ipKO-StLrqFML6fvHnT7Oml4KRZIm5uR-IbH@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

In my other vehicles (non vw) the altenator should read around 14.6 volts. So the 13.2 seems a little bit low not saying your alt is bad though. But more than that it seems that you may a something sucking down the the batteries. You can try the old take of the neg battery cable and put a test light in series trick, and if it lights the test light then you know something is drawing from the battery and then start pulling fuses until you can locate at least what circuit that the drain is on. 

 

Last time I did that found the interior light was shorting out, pulled the bulb and problem solved.

 

Good luck hope this helps.

 

CQ







 

> Date: Wed, 12 May 2010 12:41:48 -0400
> From: phishman068@GMAIL.COM
> Subject: Battery Problems- Slow Cranking
> To: vanagon@GERRY.VANAGON.COM
> 
> SO,
> I have a mystery set of electrical issues.
> My battery keeps testing good. It has 650CCA and holds 12.6volts, only going
> down to about 11.5 on cranking.
> My alternator (Bostig ZETEC) is a 110amp alternator and is testing at
> 13.2Volts and 75amps (at the battery) which is low bus supposedly within a
> reasonable level of what it should be.
> 
> Symptoms:
> If the car sits for any period of time, even an hour, it will barely crank
> over. Very Labored. Once it finally catches it runs great. If i drive it for
> more then 10 minutes, it will put enough of a charge into it that if i shut
> it down and restart it pretty promptly, it fires right up. The longer it
> sits, the more it sounds like it won't start. Jumping it, even just off a
> second battery always makes it spin super fast and fire right up. So to me
> this tells me either my battery is not getting charged well, or not holding
> a charge at all.
> Since the battery is testing good..... do you think it's the alternator?
> 
> I'm running out of ideas/methods to test.
> Any suggestions would be appreciated.
> 
> -Craig
> '85GL turned WESTY
> BOSTIG in the back.
                                          
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